Synthesis of 3,5-diaryl substituted indole derivatives and its selective iodide ion chemosensing
作者:Krishnaswamy R. Rathikrishnan、Vellore K. Indirapriyadharshini、Seeram Ramakrishna、Rajendiran Murugan
DOI:10.1016/j.saa.2011.10.067
日期:2012.2
tetrabutylammonium fluoride (TBAF) and tetrabutylammonium bisulphate (TBAHSO(4)). The indole cores were observed effectively and selectively recognized biologically important iodide was reported. Significant absorption change was observed only for tetrabutylammonium iodide and no change with other anions. The absorption spectra indicated the formation of complex between host and guest is in 1:1 stoichiometric
在此贡献中,我们使用Wadsworth-Emmons偶联合成了一系列具有不同官能团的1-乙基-3,5-双[2-(芳基)乙烯基] -1H-吲哚基衍生物。通过紫外可见光谱法研究了受体对四丁基氟化铵,氯化物,溴化物,碘化物和硫酸氢盐等卤化物的传感能力。在THF溶液中,化合物AE对碘离子的选择性比对其他离子(如溴化四丁基铵(TBABr),氯化四丁基铵(TBACl),氟化四丁基铵(TBAF)和硫酸四丁基铵(TBAHSO(4)))表现出优异的选择性。有效地观察到吲哚核,并据报道选择性地识别了生物学上重要的碘化物。仅碘化四丁基铵观察到显着的吸收变化,而其他阴离子则没有变化。吸收光谱表明,主体与客体之间形成的络合物的化学计量比为1:1。发现AE与碘离子的缔合常数为3.2×10(4)M(-1),3.9×10(4)M(-1),4.2×10(3)M(-1),2.9× 10(3)M(-1)和2.14×10(3)M(-1)。